Bug: Unable to mock companion field

Prerequisites

Please answer the following questions for yourself before submitting an issue.

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Expected Behavior

Able mock variables within companion objects as well as functions

Relates to #136

Context

Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.

• MockK version: 1.10.01.10.3
• OS: Windows 10 Home 19041.450
• Kotlin version: 1.3.721.4.10
• JDK version: 1114
• JUnit version: jupiter 5.6.25.7.0
• Type of test: unit test

Minimal reproducible code (the gist of this issue)

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.6.2'
    testImplementation 'io.mockk:mockk:1.10.0'
}

class Util {

    fun getMessage(): String {
        return message
    }

    companion object {
        val message = "failure"
    }
}

package io.mockk.gh

import io.mockk.every
import io.mockk.mockkObject
import io.mockk.mockkStatic
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test

class UtilTest {
    @Test
    fun test() {
        val util = Util()
        mockkStatic(Util::class)
        mockkObject(Util)

        every { Util.message } returns "success"

        val result = util.getMessage()

        assertEquals("success", result)
    }
}

[GregHib]

Re-tested with JDK 15.0.2, Kotlin 1.4.30, Mockk 1.10.5 and JUnit 5.7.1, can we get this re-opened @oleksiyp? Thanks in advance.

[GregHib]

Re-tested with JDK 14, Kotlin 1.4.10, Mockk 1.10.3 and JUnit 5.7.0.